Currently, Lala allows for 89-cent MP3 downloads and 10-cent stream-forever purchases (per song, that is). It's unknown at this time whether this business model would change, but it is likely that it would allow you to use iTunes without downloading the software, store your music in the cloud, and stream music to your Apple devices (such as the iPhone). There's no shortage of music-streaming webapps at the moment (such as Lifehacker favorites previously mentioned Spotify or Mixtape.me), but we're curious: